Sulfonation of Nylon-6 by Solid Phase Reaction

Abstract

Sulfonation of nylon-6 has been widely studied via solution phase reaction processes, which involve dissolution of the base polymer in a strong solvent. In this paper, novel solid phase reaction technology was adopted to induce the addition of the sulfonate side chain onto the backbone of nylon-6 using 1,3-propane sultone. The reaction of the polymer with the reagent, which was catalysed by dimsyl anions, was carried out at 65°C in a specially designed, well-mixed reactor. The reaction materials remained as free-flowing powders through the process. A sulfonate level of 1.32 mol% was achieved. The conversion of the 1,3-propane sultone was 23.3%. The sulfonation was qualitatively identified with FTi.r. and d.s.c. Its sulfonate level was determined by quantitative measurement of sulfur and nitrogen content of the treated polymer.

Department(s)

Chemical and Biochemical Engineering

Keywords and Phrases

Solid Phase Reaction; Sulfonation; Nylon-6

International Standard Serial Number (ISSN)

0032-3861

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1994 Elsevier, All rights reserved.

Publication Date

01 Jan 1994

Link to Full Text

Share

 
COinS